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-rw-r--r--arch/ppc/kernel/Makefile5
-rw-r--r--arch/ppc/kernel/asm-offsets.c2
-rw-r--r--arch/ppc/kernel/entry.S167
-rw-r--r--arch/ppc/kernel/head_8xx.S77
-rw-r--r--arch/ppc/kernel/idle.c4
-rw-r--r--arch/ppc/kernel/machine_kexec.c6
-rw-r--r--arch/ppc/kernel/misc.S78
-rw-r--r--arch/ppc/kernel/pci.c289
-rw-r--r--arch/ppc/kernel/ppc_htab.c1
-rw-r--r--arch/ppc/kernel/ppc_ksyms.c15
-rw-r--r--arch/ppc/kernel/process.c851
-rw-r--r--arch/ppc/kernel/setup.c35
-rw-r--r--arch/ppc/kernel/smp.c4
-rw-r--r--arch/ppc/kernel/traps.c13
14 files changed, 232 insertions, 1315 deletions
diff --git a/arch/ppc/kernel/Makefile b/arch/ppc/kernel/Makefile
index 0bb23fce4293..e399bbb969a4 100644
--- a/arch/ppc/kernel/Makefile
+++ b/arch/ppc/kernel/Makefile
@@ -9,16 +9,13 @@ extra-$(CONFIG_44x) := head_44x.o
extra-$(CONFIG_FSL_BOOKE) := head_fsl_booke.o
extra-$(CONFIG_8xx) := head_8xx.o
extra-$(CONFIG_6xx) += idle_6xx.o
-extra-$(CONFIG_POWER4) += idle_power4.o
extra-y += vmlinux.lds
obj-y := entry.o traps.o idle.o time.o misc.o \
- process.o \
setup.o \
ppc_htab.o
obj-$(CONFIG_6xx) += l2cr.o cpu_setup_6xx.o
obj-$(CONFIG_SOFTWARE_SUSPEND) += swsusp.o
-obj-$(CONFIG_POWER4) += cpu_setup_power4.o
obj-$(CONFIG_MODULES) += module.o ppc_ksyms.o
obj-$(CONFIG_NOT_COHERENT_CACHE) += dma-mapping.o
obj-$(CONFIG_PCI) += pci.o
@@ -43,11 +40,9 @@ obj-$(CONFIG_6xx) += l2cr.o cpu_setup_6xx.o
obj-$(CONFIG_SOFTWARE_SUSPEND) += swsusp.o
obj-$(CONFIG_MODULES) += module.o
obj-$(CONFIG_NOT_COHERENT_CACHE) += dma-mapping.o
-obj-$(CONFIG_PCI) += pci.o
obj-$(CONFIG_KGDB) += ppc-stub.o
obj-$(CONFIG_TAU) += temp.o
ifndef CONFIG_E200
obj-$(CONFIG_FSL_BOOKE) += perfmon_fsl_booke.o
endif
-obj-$(CONFIG_KEXEC) += machine_kexec.o relocate_kernel.o
endif
diff --git a/arch/ppc/kernel/asm-offsets.c b/arch/ppc/kernel/asm-offsets.c
index fe0e767fb94e..7964bf660e92 100644
--- a/arch/ppc/kernel/asm-offsets.c
+++ b/arch/ppc/kernel/asm-offsets.c
@@ -131,7 +131,7 @@ main(void)
DEFINE(CPU_SPEC_FEATURES, offsetof(struct cpu_spec, cpu_features));
DEFINE(CPU_SPEC_SETUP, offsetof(struct cpu_spec, cpu_setup));
- DEFINE(TI_SC_NOERR, offsetof(struct thread_info, syscall_noerror));
+ DEFINE(TI_SIGFRAME, offsetof(struct thread_info, nvgprs_frame));
DEFINE(TI_TASK, offsetof(struct thread_info, task));
DEFINE(TI_EXECDOMAIN, offsetof(struct thread_info, exec_domain));
DEFINE(TI_FLAGS, offsetof(struct thread_info, flags));
diff --git a/arch/ppc/kernel/entry.S b/arch/ppc/kernel/entry.S
index f044edbb454f..a48b950722a1 100644
--- a/arch/ppc/kernel/entry.S
+++ b/arch/ppc/kernel/entry.S
@@ -200,8 +200,6 @@ _GLOBAL(DoSyscall)
bl do_show_syscall
#endif /* SHOW_SYSCALLS */
rlwinm r10,r1,0,0,18 /* current_thread_info() */
- li r11,0
- stb r11,TI_SC_NOERR(r10)
lwz r11,TI_FLAGS(r10)
andi. r11,r11,_TIF_SYSCALL_T_OR_A
bne- syscall_dotrace
@@ -222,25 +220,21 @@ ret_from_syscall:
bl do_show_syscall_exit
#endif
mr r6,r3
- li r11,-_LAST_ERRNO
- cmplw 0,r3,r11
rlwinm r12,r1,0,0,18 /* current_thread_info() */
- blt+ 30f
- lbz r11,TI_SC_NOERR(r12)
- cmpwi r11,0
- bne 30f
- neg r3,r3
- lwz r10,_CCR(r1) /* Set SO bit in CR */
- oris r10,r10,0x1000
- stw r10,_CCR(r1)
-
/* disable interrupts so current_thread_info()->flags can't change */
-30: LOAD_MSR_KERNEL(r10,MSR_KERNEL) /* doesn't include MSR_EE */
+ LOAD_MSR_KERNEL(r10,MSR_KERNEL) /* doesn't include MSR_EE */
SYNC
MTMSRD(r10)
lwz r9,TI_FLAGS(r12)
- andi. r0,r9,(_TIF_SYSCALL_T_OR_A|_TIF_SIGPENDING|_TIF_NEED_RESCHED)
+ li r8,-_LAST_ERRNO
+ andi. r0,r9,(_TIF_SYSCALL_T_OR_A|_TIF_SIGPENDING|_TIF_NEED_RESCHED|_TIF_RESTOREALL)
bne- syscall_exit_work
+ cmplw 0,r3,r8
+ blt+ syscall_exit_cont
+ lwz r11,_CCR(r1) /* Load CR */
+ neg r3,r3
+ oris r11,r11,0x1000 /* Set SO bit in CR */
+ stw r11,_CCR(r1)
syscall_exit_cont:
#if defined(CONFIG_4xx) || defined(CONFIG_BOOKE)
/* If the process has its own DBCR0 value, load it up. The single
@@ -292,46 +286,113 @@ syscall_dotrace:
b syscall_dotrace_cont
syscall_exit_work:
- stw r6,RESULT(r1) /* Save result */
+ andi. r0,r9,_TIF_RESTOREALL
+ bne- 2f
+ cmplw 0,r3,r8
+ blt+ 1f
+ andi. r0,r9,_TIF_NOERROR
+ bne- 1f
+ lwz r11,_CCR(r1) /* Load CR */
+ neg r3,r3
+ oris r11,r11,0x1000 /* Set SO bit in CR */
+ stw r11,_CCR(r1)
+
+1: stw r6,RESULT(r1) /* Save result */
stw r3,GPR3(r1) /* Update return value */
- andi. r0,r9,_TIF_SYSCALL_T_OR_A
- beq 5f
- ori r10,r10,MSR_EE
- SYNC
- MTMSRD(r10) /* re-enable interrupts */
+2: andi. r0,r9,(_TIF_PERSYSCALL_MASK)
+ beq 4f
+
+ /* Clear per-syscall TIF flags if any are set, but _leave_
+ _TIF_SAVE_NVGPRS set in r9 since we haven't dealt with that
+ yet. */
+
+ li r11,_TIF_PERSYSCALL_MASK
+ addi r12,r12,TI_FLAGS
+3: lwarx r8,0,r12
+ andc r8,r8,r11
+#ifdef CONFIG_IBM405_ERR77
+ dcbt 0,r12
+#endif
+ stwcx. r8,0,r12
+ bne- 3b
+ subi r12,r12,TI_FLAGS
+
+4: /* Anything which requires enabling interrupts? */
+ andi. r0,r9,(_TIF_SYSCALL_T_OR_A|_TIF_SINGLESTEP|_TIF_SAVE_NVGPRS)
+ beq 7f
+
+ /* Save NVGPRS if they're not saved already */
lwz r4,TRAP(r1)
andi. r4,r4,1
- beq 4f
+ beq 5f
SAVE_NVGPRS(r1)
li r4,0xc00
stw r4,TRAP(r1)
-4:
+
+ /* Re-enable interrupts */
+5: ori r10,r10,MSR_EE
+ SYNC
+ MTMSRD(r10)
+
+ andi. r0,r9,_TIF_SAVE_NVGPRS
+ bne save_user_nvgprs
+
+save_user_nvgprs_cont:
+ andi. r0,r9,(_TIF_SYSCALL_T_OR_A|_TIF_SINGLESTEP)
+ beq 7f
+
addi r3,r1,STACK_FRAME_OVERHEAD
bl do_syscall_trace_leave
REST_NVGPRS(r1)
-2:
- lwz r3,GPR3(r1)
+
+6: lwz r3,GPR3(r1)
LOAD_MSR_KERNEL(r10,MSR_KERNEL) /* doesn't include MSR_EE */
SYNC
MTMSRD(r10) /* disable interrupts again */
rlwinm r12,r1,0,0,18 /* current_thread_info() */
lwz r9,TI_FLAGS(r12)
-5:
+7:
andi. r0,r9,_TIF_NEED_RESCHED
- bne 1f
+ bne 8f
lwz r5,_MSR(r1)
andi. r5,r5,MSR_PR
- beq syscall_exit_cont
+ beq ret_from_except
andi. r0,r9,_TIF_SIGPENDING
- beq syscall_exit_cont
+ beq ret_from_except
b do_user_signal
-1:
+8:
ori r10,r10,MSR_EE
SYNC
MTMSRD(r10) /* re-enable interrupts */
bl schedule
- b 2b
+ b 6b
+
+save_user_nvgprs:
+ lwz r8,TI_SIGFRAME(r12)
+
+.macro savewords start, end
+ 1: stw \start,4*(\start)(r8)
+ .section __ex_table,"a"
+ .align 2
+ .long 1b,save_user_nvgprs_fault
+ .previous
+ .if \end - \start
+ savewords "(\start+1)",\end
+ .endif
+.endm
+ savewords 14,31
+ b save_user_nvgprs_cont
+
+
+save_user_nvgprs_fault:
+ li r3,11 /* SIGSEGV */
+ lwz r4,TI_TASK(r12)
+ bl force_sigsegv
+ rlwinm r12,r1,0,0,18 /* current_thread_info() */
+ lwz r9,TI_FLAGS(r12)
+ b save_user_nvgprs_cont
+
#ifdef SHOW_SYSCALLS
do_show_syscall:
#ifdef SHOW_SYSCALLS_TASK
@@ -401,28 +462,10 @@ show_syscalls_task:
#endif /* SHOW_SYSCALLS */
/*
- * The sigsuspend and rt_sigsuspend system calls can call do_signal
- * and thus put the process into the stopped state where we might
- * want to examine its user state with ptrace. Therefore we need
- * to save all the nonvolatile registers (r13 - r31) before calling
- * the C code.
+ * The fork/clone functions need to copy the full register set into
+ * the child process. Therefore we need to save all the nonvolatile
+ * registers (r13 - r31) before calling the C code.
*/
- .globl ppc_sigsuspend
-ppc_sigsuspend:
- SAVE_NVGPRS(r1)
- lwz r0,TRAP(r1)
- rlwinm r0,r0,0,0,30 /* clear LSB to indicate full */
- stw r0,TRAP(r1) /* register set saved */
- b sys_sigsuspend
-
- .globl ppc_rt_sigsuspend
-ppc_rt_sigsuspend:
- SAVE_NVGPRS(r1)
- lwz r0,TRAP(r1)
- rlwinm r0,r0,0,0,30
- stw r0,TRAP(r1)
- b sys_rt_sigsuspend
-
.globl ppc_fork
ppc_fork:
SAVE_NVGPRS(r1)
@@ -447,14 +490,6 @@ ppc_clone:
stw r0,TRAP(r1) /* register set saved */
b sys_clone
- .globl ppc_swapcontext
-ppc_swapcontext:
- SAVE_NVGPRS(r1)
- lwz r0,TRAP(r1)
- rlwinm r0,r0,0,0,30 /* clear LSB to indicate full */
- stw r0,TRAP(r1) /* register set saved */
- b sys_swapcontext
-
/*
* Top-level page fault handling.
* This is in assembler because if do_page_fault tells us that
@@ -626,16 +661,6 @@ END_FTR_SECTION_IFSET(CPU_FTR_601)
.long ret_from_except
#endif
- .globl sigreturn_exit
-sigreturn_exit:
- subi r1,r3,STACK_FRAME_OVERHEAD
- rlwinm r12,r1,0,0,18 /* current_thread_info() */
- lwz r9,TI_FLAGS(r12)
- andi. r0,r9,_TIF_SYSCALL_T_OR_A
- beq+ ret_from_except_full
- bl do_syscall_trace_leave
- /* fall through */
-
.globl ret_from_except_full
ret_from_except_full:
REST_NVGPRS(r1)
@@ -658,7 +683,7 @@ user_exc_return: /* r10 contains MSR_KERNEL here */
/* Check current_thread_info()->flags */
rlwinm r9,r1,0,0,18
lwz r9,TI_FLAGS(r9)
- andi. r0,r9,(_TIF_SIGPENDING|_TIF_NEED_RESCHED)
+ andi. r0,r9,(_TIF_SIGPENDING|_TIF_NEED_RESCHED|_TIF_RESTOREALL)
bne do_work
restore_user:
diff --git a/arch/ppc/kernel/head_8xx.S b/arch/ppc/kernel/head_8xx.S
index de0978742221..3e6ca7f5843f 100644
--- a/arch/ppc/kernel/head_8xx.S
+++ b/arch/ppc/kernel/head_8xx.S
@@ -375,6 +375,8 @@ DataStoreTLBMiss:
lis r11, swapper_pg_dir@h
ori r11, r11, swapper_pg_dir@l
rlwimi r10, r11, 0, 2, 19
+ stw r12, 16(r0)
+ b LoadLargeDTLB
3:
lwz r11, 0(r10) /* Get the level 1 entry */
rlwinm. r10, r11,0,0,19 /* Extract page descriptor page address */
@@ -430,6 +432,81 @@ DataStoreTLBMiss:
InstructionTLBError:
b InstructionAccess
+LoadLargeDTLB:
+ li r12, 0
+ lwz r11, 0(r10) /* Get the level 1 entry */
+ rlwinm. r10, r11,0,0,19 /* Extract page descriptor page address */
+ beq 3f /* If zero, don't try to find a pte */
+
+ /* We have a pte table, so load fetch the pte from the table.
+ */
+ ori r11, r11, 1 /* Set valid bit in physical L2 page */
+ DO_8xx_CPU6(0x3b80, r3)
+ mtspr SPRN_MD_TWC, r11 /* Load pte table base address */
+ mfspr r10, SPRN_MD_TWC /* ....and get the pte address */
+ lwz r10, 0(r10) /* Get the pte */
+
+ /* Insert the Guarded flag into the TWC from the Linux PTE.
+ * It is bit 27 of both the Linux PTE and the TWC (at least
+ * I got that right :-). It will be better when we can put
+ * this into the Linux pgd/pmd and load it in the operation
+ * above.
+ */
+ rlwimi r11, r10, 0, 27, 27
+
+ rlwimi r12, r10, 0, 0, 9 /* extract phys. addr */
+ mfspr r3, SPRN_MD_EPN
+ rlwinm r3, r3, 0, 0, 9 /* extract virtual address */
+ tophys(r3, r3)
+ cmpw r3, r12 /* only use 8M page if it is a direct
+ kernel mapping */
+ bne 1f
+ ori r11, r11, MD_PS8MEG
+ li r12, 1
+ b 2f
+1:
+ li r12, 0 /* can't use 8MB TLB, so zero r12. */
+2:
+ DO_8xx_CPU6(0x3b80, r3)
+ mtspr SPRN_MD_TWC, r11
+
+ /* The Linux PTE won't go exactly into the MMU TLB.
+ * Software indicator bits 21, 22 and 28 must be clear.
+ * Software indicator bits 24, 25, 26, and 27 must be
+ * set. All other Linux PTE bits control the behavior
+ * of the MMU.
+ */
+3: li r11, 0x00f0
+ rlwimi r10, r11, 0, 24, 28 /* Set 24-27, clear 28 */
+ cmpwi r12, 1
+ bne 4f
+ ori r10, r10, 0x8
+
+ mfspr r12, SPRN_MD_EPN
+ lis r3, 0xff80 /* 10-19 must be clear for 8MB TLB */
+ ori r3, r3, 0x0fff
+ and r12, r3, r12
+ DO_8xx_CPU6(0x3780, r3)
+ mtspr SPRN_MD_EPN, r12
+
+ lis r3, 0xff80 /* 10-19 must be clear for 8MB TLB */
+ ori r3, r3, 0x0fff
+ and r10, r3, r10
+4:
+ DO_8xx_CPU6(0x3d80, r3)
+ mtspr SPRN_MD_RPN, r10 /* Update TLB entry */
+
+ mfspr r10, SPRN_M_TW /* Restore registers */
+ lwz r11, 0(r0)
+ mtcr r11
+ lwz r11, 4(r0)
+
+ lwz r12, 16(r0)
+#ifdef CONFIG_8xx_CPU6
+ lwz r3, 8(r0)
+#endif
+ rfi
+
/* This is the data TLB error on the MPC8xx. This could be due to
* many reasons, including a dirty update to a pte. We can catch that
* one here, but anything else is an error. First, we track down the
diff --git a/arch/ppc/kernel/idle.c b/arch/ppc/kernel/idle.c
index 821a75e45602..1be3ca5bae40 100644
--- a/arch/ppc/kernel/idle.c
+++ b/arch/ppc/kernel/idle.c
@@ -37,7 +37,6 @@
void default_idle(void)
{
void (*powersave)(void);
- int cpu = smp_processor_id();
powersave = ppc_md.power_save;
@@ -47,7 +46,8 @@ void default_idle(void)
#ifdef CONFIG_SMP
else {
set_thread_flag(TIF_POLLING_NRFLAG);
- while (!need_resched() && !cpu_is_offline(cpu))
+ while (!need_resched() &&
+ !cpu_is_offline(smp_processor_id()))
barrier();
clear_thread_flag(TIF_POLLING_NRFLAG);
}
diff --git a/arch/ppc/kernel/machine_kexec.c b/arch/ppc/kernel/machine_kexec.c
index a882b0dbe8de..84d65a87191e 100644
--- a/arch/ppc/kernel/machine_kexec.c
+++ b/arch/ppc/kernel/machine_kexec.c
@@ -28,12 +28,6 @@ typedef NORET_TYPE void (*relocate_new_kernel_t)(
const extern unsigned char relocate_new_kernel[];
const extern unsigned int relocate_new_kernel_size;
-/*
- * Provide a dummy crash_notes definition while crash dump arrives to ppc.
- * This prevents breakage of crash_notes attribute in kernel/ksysfs.c.
- */
-note_buf_t crash_notes[NR_CPUS];
-
void machine_shutdown(void)
{
if (ppc_md.machine_shutdown)
diff --git a/arch/ppc/kernel/misc.S b/arch/ppc/kernel/misc.S
index 5e61124581d0..c3427eed8345 100644
--- a/arch/ppc/kernel/misc.S
+++ b/arch/ppc/kernel/misc.S
@@ -204,78 +204,6 @@ _GLOBAL(call_setup_cpu)
mtctr r5
bctr
-#if defined(CONFIG_CPU_FREQ_PMAC) && defined(CONFIG_6xx)
-
-/* This gets called by via-pmu.c to switch the PLL selection
- * on 750fx CPU. This function should really be moved to some
- * other place (as most of the cpufreq code in via-pmu
- */
-_GLOBAL(low_choose_750fx_pll)
- /* Clear MSR:EE */
- mfmsr r7
- rlwinm r0,r7,0,17,15
- mtmsr r0
-
- /* If switching to PLL1, disable HID0:BTIC */
- cmplwi cr0,r3,0
- beq 1f
- mfspr r5,SPRN_HID0
- rlwinm r5,r5,0,27,25
- sync
- mtspr SPRN_HID0,r5
- isync
- sync
-
-1:
- /* Calc new HID1 value */
- mfspr r4,SPRN_HID1 /* Build a HID1:PS bit from parameter */
- rlwinm r5,r3,16,15,15 /* Clear out HID1:PS from value read */
- rlwinm r4,r4,0,16,14 /* Could have I used rlwimi here ? */
- or r4,r4,r5
- mtspr SPRN_HID1,r4
-
- /* Store new HID1 image */
- rlwinm r6,r1,0,0,18
- lwz r6,TI_CPU(r6)
- slwi r6,r6,2
- addis r6,r6,nap_save_hid1@ha
- stw r4,nap_save_hid1@l(r6)
-
- /* If switching to PLL0, enable HID0:BTIC */
- cmplwi cr0,r3,0
- bne 1f
- mfspr r5,SPRN_HID0
- ori r5,r5,HID0_BTIC
- sync
- mtspr SPRN_HID0,r5
- isync
- sync
-
-1:
- /* Return */
- mtmsr r7
- blr
-
-_GLOBAL(low_choose_7447a_dfs)
- /* Clear MSR:EE */
- mfmsr r7
- rlwinm r0,r7,0,17,15
- mtmsr r0
-
- /* Calc new HID1 value */
- mfspr r4,SPRN_HID1
- insrwi r4,r3,1,9 /* insert parameter into bit 9 */
- sync
- mtspr SPRN_HID1,r4
- sync
- isync
-
- /* Return */
- mtmsr r7
- blr
-
-#endif /* CONFIG_CPU_FREQ_PMAC && CONFIG_6xx */
-
/*
* complement mask on the msr then "or" some values on.
* _nmask_and_or_msr(nmask, value_to_or)
@@ -1197,7 +1125,7 @@ _GLOBAL(sys_call_table)
.long sys_ssetmask
.long sys_setreuid /* 70 */
.long sys_setregid
- .long ppc_sigsuspend
+ .long sys_sigsuspend
.long sys_sigpending
.long sys_sethostname
.long sys_setrlimit /* 75 */
@@ -1303,7 +1231,7 @@ _GLOBAL(sys_call_table)
.long sys_rt_sigpending /* 175 */
.long sys_rt_sigtimedwait
.long sys_rt_sigqueueinfo
- .long ppc_rt_sigsuspend
+ .long sys_rt_sigsuspend
.long sys_pread64
.long sys_pwrite64 /* 180 */
.long sys_chown
@@ -1374,7 +1302,7 @@ _GLOBAL(sys_call_table)
.long sys_clock_gettime
.long sys_clock_getres
.long sys_clock_nanosleep
- .long ppc_swapcontext
+ .long sys_swapcontext
.long sys_tgkill /* 250 */
.long sys_utimes
.long sys_statfs64
diff --git a/arch/ppc/kernel/pci.c b/arch/ppc/kernel/pci.c
index f7fae5f153b2..04d04c5bfdd0 100644
--- a/arch/ppc/kernel/pci.c
+++ b/arch/ppc/kernel/pci.c
@@ -1,5 +1,5 @@
/*
- * Common pmac/prep/chrp pci routines. -- Cort
+ * Common prep/chrp pci routines. -- Cort
*/
#include <linux/config.h>
@@ -50,8 +50,7 @@ static void fixup_cpc710_pci64(struct pci_dev* dev);
static u8* pci_to_OF_bus_map;
#endif
-/* By default, we don't re-assign bus numbers. We do this only on
- * some pmacs
+/* By default, we don't re-assign bus numbers.
*/
int pci_assign_all_buses;
@@ -503,7 +502,7 @@ pcibios_allocate_resources(int pass)
u16 command;
struct resource *r;
- while ((dev = pci_find_device(PCI_ANY_ID, PCI_ANY_ID, dev)) != NULL) {
+ for_each_pci_dev(dev) {
pci_read_config_word(dev, PCI_COMMAND, &command);
for (idx = 0; idx < 6; idx++) {
r = &dev->resource[idx];
@@ -540,7 +539,7 @@ pcibios_assign_resources(void)
int idx;
struct resource *r;
- while ((dev = pci_find_device(PCI_ANY_ID, PCI_ANY_ID, dev)) != NULL) {
+ for_each_pci_dev(dev) {
int class = dev->class >> 8;
/* Don't touch classless devices and host bridges */
@@ -780,17 +779,6 @@ pci_busdev_to_OF_node(struct pci_bus *bus, int devfn)
return NULL;
/* Fixup bus number according to what OF think it is. */
-#ifdef CONFIG_PPC_PMAC
- /* The G5 need a special case here. Basically, we don't remap all
- * busses on it so we don't create the pci-OF-map. However, we do
- * remap the AGP bus and so have to deal with it. A future better
- * fix has to be done by making the remapping per-host and always
- * filling the pci_to_OF map. --BenH
- */
- if (_machine == _MACH_Pmac && busnr >= 0xf0)
- busnr -= 0xf0;
- else
-#endif
if (pci_to_OF_bus_map)
busnr = pci_to_OF_bus_map[busnr];
if (busnr == 0xff)
@@ -815,8 +803,7 @@ EXPORT_SYMBOL(pci_device_to_OF_node);
* to set pci_assign_all_buses to 1 and still use RTAS for PCI
* config cycles.
*/
-struct pci_controller*
-pci_find_hose_for_OF_device(struct device_node* node)
+struct pci_controller* pci_find_hose_for_OF_device(struct device_node* node)
{
if (!have_of)
return NULL;
@@ -868,14 +855,15 @@ pci_device_from_OF_node(struct device_node* node, u8* bus, u8* devfn)
*/
if (!pci_to_OF_bus_map)
return 0;
- while ((dev = pci_find_device(PCI_ANY_ID, PCI_ANY_ID, dev)) != NULL) {
- if (pci_to_OF_bus_map[dev->bus->number] != *bus)
- continue;
- if (dev->devfn != *devfn)
- continue;
- *bus = dev->bus->number;
- return 0;
- }
+
+ for_each_pci_dev(dev)
+ if (pci_to_OF_bus_map[dev->bus->number] == *bus &&
+ dev->devfn == *devfn) {
+ *bus = dev->bus->number;
+ pci_dev_put(dev);
+ return 0;
+ }
+
return -ENODEV;
}
EXPORT_SYMBOL(pci_device_from_OF_node);
@@ -942,7 +930,7 @@ pci_process_bridge_OF_ranges(struct pci_controller *hose,
while (ranges && (rlen -= np * sizeof(unsigned int)) >= 0) {
res = NULL;
size = ranges[na+4];
- switch (ranges[0] >> 24) {
+ switch ((ranges[0] >> 24) & 0x3) {
case 1: /* I/O space */
if (ranges[2] != 0)
break;
@@ -956,6 +944,8 @@ pci_process_bridge_OF_ranges(struct pci_controller *hose,
res = &hose->io_resource;
res->flags = IORESOURCE_IO;
res->start = ranges[2];
+ DBG("PCI: IO 0x%lx -> 0x%lx\n",
+ res->start, res->start + size - 1);
break;
case 2: /* memory space */
memno = 0;
@@ -973,7 +963,11 @@ pci_process_bridge_OF_ranges(struct pci_controller *hose,
if (memno < 3) {
res = &hose->mem_resources[memno];
res->flags = IORESOURCE_MEM;
+ if(ranges[0] & 0x40000000)
+ res->flags |= IORESOURCE_PREFETCH;
res->start = ranges[na+2];
+ DBG("PCI: MEM[%d] 0x%lx -> 0x%lx\n", memno,
+ res->start, res->start + size - 1);
}
break;
}
@@ -1034,216 +1028,6 @@ void pcibios_add_platform_entries(struct pci_dev *pdev)
}
-#ifdef CONFIG_PPC_PMAC
-/*
- * This set of routines checks for PCI<->PCI bridges that have closed
- * IO resources and have child devices. It tries to re-open an IO
- * window on them.
- *
- * This is a _temporary_ fix to workaround a problem with Apple's OF
- * closing IO windows on P2P bridges when the OF drivers of cards
- * below this bridge don't claim any IO range (typically ATI or
- * Adaptec).
- *
- * A more complete fix would be to use drivers/pci/setup-bus.c, which
- * involves a working pcibios_fixup_pbus_ranges(), some more care about
- * ordering when creating the host bus resources, and maybe a few more
- * minor tweaks
- */
-
-/* Initialize bridges with base/limit values we have collected */
-static void __init
-do_update_p2p_io_resource(struct pci_bus *bus, int enable_vga)
-{
- struct pci_dev *bridge = bus->self;
- struct pci_controller* hose = (struct pci_controller *)bridge->sysdata;
- u32 l;
- u16 w;
- struct resource res;
-
- if (bus->resource[0] == NULL)
- return;
- res = *(bus->resource[0]);
-
- DBG("Remapping Bus %d, bridge: %s\n", bus->number, pci_name(bridge));
- res.start -= ((unsigned long) hose->io_base_virt - isa_io_base);
- res.end -= ((unsigned long) hose->io_base_virt - isa_io_base);
- DBG(" IO window: %08lx-%08lx\n", res.start, res.end);
-
- /* Set up the top and bottom of the PCI I/O segment for this bus. */
- pci_read_config_dword(bridge, PCI_IO_BASE, &l);
- l &= 0xffff000f;
- l |= (res.start >> 8) & 0x00f0;
- l |= res.end & 0xf000;
- pci_write_config_dword(bridge, PCI_IO_BASE, l);
-
- if ((l & PCI_IO_RANGE_TYPE_MASK) == PCI_IO_RANGE_TYPE_32) {
- l = (res.start >> 16) | (res.end & 0xffff0000);
- pci_write_config_dword(bridge, PCI_IO_BASE_UPPER16, l);
- }
-
- pci_read_config_word(bridge, PCI_COMMAND, &w);
- w |= PCI_COMMAND_IO;
- pci_write_config_word(bridge, PCI_COMMAND, w);
-
-#if 0 /* Enabling this causes XFree 4.2.0 to hang during PCI probe */
- if (enable_vga) {
- pci_read_config_word(bridge, PCI_BRIDGE_CONTROL, &w);
- w |= PCI_BRIDGE_CTL_VGA;
- pci_write_config_word(bridge, PCI_BRIDGE_CONTROL, w);
- }
-#endif
-}
-
-/* This function is pretty basic and actually quite broken for the
- * general case, it's enough for us right now though. It's supposed
- * to tell us if we need to open an IO range at all or not and what
- * size.
- */
-static int __init
-check_for_io_childs(struct pci_bus *bus, struct resource* res, int *found_vga)
-{
- struct pci_dev *dev;
- int i;
- int rc = 0;
-
-#define push_end(res, size) do { unsigned long __sz = (size) ; \
- res->end = ((res->end + __sz) / (__sz + 1)) * (__sz + 1) + __sz; \
- } while (0)
-
- list_for_each_entry(dev, &bus->devices, bus_list) {
- u16 class = dev->class >> 8;
-
- if (class == PCI_CLASS_DISPLAY_VGA ||
- class == PCI_CLASS_NOT_DEFINED_VGA)
- *found_vga = 1;
- if (class >> 8 == PCI_BASE_CLASS_BRIDGE && dev->subordinate)
- rc |= check_for_io_childs(dev->subordinate, res, found_vga);
- if (class == PCI_CLASS_BRIDGE_CARDBUS)
- push_end(res, 0xfff);
-
- for (i=0; i<PCI_NUM_RESOURCES; i++) {
- struct resource *r;
- unsigned long r_size;
-
- if (dev->class >> 8 == PCI_CLASS_BRIDGE_PCI
- && i >= PCI_BRIDGE_RESOURCES)
- continue;
- r = &dev->resource[i];
- r_size = r->end - r->start;
- if (r_size < 0xfff)
- r_size = 0xfff;
- if (r->flags & IORESOURCE_IO && (r_size) != 0) {
- rc = 1;
- push_end(res, r_size);
- }
- }
- }
-
- return rc;
-}
-
-/* Here we scan all P2P bridges of a given level that have a closed
- * IO window. Note that the test for the presence of a VGA card should
- * be improved to take into account already configured P2P bridges,
- * currently, we don't see them and might end up configuring 2 bridges
- * with VGA pass through enabled
- */
-static void __init
-do_fixup_p2p_level(struct pci_bus *bus)
-{
- struct pci_bus *b;
- int i, parent_io;
- int has_vga = 0;
-
- for (parent_io=0; parent_io<4; parent_io++)
- if (bus->resource[parent_io]
- && bus->resource[parent_io]->flags & IORESOURCE_IO)
- break;
- if (parent_io >= 4)
- return;
-
- list_for_each_entry(b, &bus->children, node) {
- struct pci_dev *d = b->self;
- struct pci_controller* hose = (struct pci_controller *)d->sysdata;
- struct resource *res = b->resource[0];
- struct resource tmp_res;
- unsigned long max;
- int found_vga = 0;
-
- memset(&tmp_res, 0, sizeof(tmp_res));
- tmp_res.start = bus->resource[parent_io]->start;
-
- /* We don't let low addresses go through that closed P2P bridge, well,
- * that may not be necessary but I feel safer that way
- */
- if (tmp_res.start == 0)
- tmp_res.start = 0x1000;
-
- if (!list_empty(&b->devices) && res && res->flags == 0 &&
- res != bus->resource[parent_io] &&
- (d->class >> 8) == PCI_CLASS_BRIDGE_PCI &&
- check_for_io_childs(b, &tmp_res, &found_vga)) {
- u8 io_base_lo;
-
- printk(KERN_INFO "Fixing up IO bus %s\n", b->name);
-
- if (found_vga) {
- if (has_vga) {
- printk(KERN_WARNING "Skipping VGA, already active"
- " on bus segment\n");
- found_vga = 0;
- } else
- has_vga = 1;
- }
- pci_read_config_byte(d, PCI_IO_BASE, &io_base_lo);
-
- if ((io_base_lo & PCI_IO_RANGE_TYPE_MASK) == PCI_IO_RANGE_TYPE_32)
- max = ((unsigned long) hose->io_base_virt
- - isa_io_base) + 0xffffffff;
- else
- max = ((unsigned long) hose->io_base_virt
- - isa_io_base) + 0xffff;
-
- *res = tmp_res;
- res->flags = IORESOURCE_IO;
- res->name = b->name;
-
- /* Find a resource in the parent where we can allocate */
- for (i = 0 ; i < 4; i++) {
- struct resource *r = bus->resource[i];
- if (!r)
- continue;
- if ((r->flags & IORESOURCE_IO) == 0)
- continue;
- DBG("Trying to allocate from %08lx, size %08lx from parent"
- " res %d: %08lx -> %08lx\n",
- res->start, res->end, i, r->start, r->end);
-
- if (allocate_resource(r, res, res->end + 1, res->start, max,
- res->end + 1, NULL, NULL) < 0) {
- DBG("Failed !\n");
- continue;
- }
- do_update_p2p_io_resource(b, found_vga);
- break;
- }
- }
- do_fixup_p2p_level(b);
- }
-}
-
-static void
-pcibios_fixup_p2p_bridges(void)
-{
- struct pci_bus *b;
-
- list_for_each_entry(b, &pci_root_buses, node)
- do_fixup_p2p_level(b);
-}
-
-#endif /* CONFIG_PPC_PMAC */
-
static int __init
pcibios_init(void)
{
@@ -1284,9 +1068,6 @@ pcibios_init(void)
pcibios_allocate_bus_resources(&pci_root_buses);
pcibios_allocate_resources(0);
pcibios_allocate_resources(1);
-#ifdef CONFIG_PPC_PMAC
- pcibios_fixup_p2p_bridges();
-#endif /* CONFIG_PPC_PMAC */
pcibios_assign_resources();
/* Call machine dependent post-init code */
@@ -1716,17 +1497,6 @@ long sys_pciconfig_iobase(long which, unsigned long bus, unsigned long devfn)
struct pci_controller* hose;
long result = -EOPNOTSUPP;
- /* Argh ! Please forgive me for that hack, but that's the
- * simplest way to get existing XFree to not lockup on some
- * G5 machines... So when something asks for bus 0 io base
- * (bus 0 is HT root), we return the AGP one instead.
- */
-#ifdef CONFIG_PPC_PMAC
- if (_machine == _MACH_Pmac && machine_is_compatible("MacRISC4"))
- if (bus == 0)
- bus = 0xf0;
-#endif /* CONFIG_PPC_PMAC */
-
hose = pci_bus_to_hose(bus);
if (!hose)
return -ENODEV;
@@ -1806,6 +1576,23 @@ void pci_iounmap(struct pci_dev *dev, void __iomem *addr)
EXPORT_SYMBOL(pci_iomap);
EXPORT_SYMBOL(pci_iounmap);
+unsigned long pci_address_to_pio(phys_addr_t address)
+{
+ struct pci_controller* hose = hose_head;
+
+ for (; hose; hose = hose->next) {
+ unsigned int size = hose->io_resource.end -
+ hose->io_resource.start + 1;
+ if (address >= hose->io_base_phys &&
+ address < (hose->io_base_phys + size)) {
+ unsigned long base =
+ (unsigned long)hose->io_base_virt - _IO_BASE;
+ return base + (address - hose->io_base_phys);
+ }
+ }
+ return (unsigned int)-1;
+}
+EXPORT_SYMBOL(pci_address_to_pio);
/*
* Null PCI config access functions, for the case when we can't
diff --git a/arch/ppc/kernel/ppc_htab.c b/arch/ppc/kernel/ppc_htab.c
index ca810025993f..2f5c7650274f 100644
--- a/arch/ppc/kernel/ppc_htab.c
+++ b/arch/ppc/kernel/ppc_htab.c
@@ -16,6 +16,7 @@
#include <linux/proc_fs.h>
#include <linux/stat.h>
#include <linux/sysctl.h>
+#include <linux/capability.h>
#include <linux/ctype.h>
#include <linux/threads.h>
#include <linux/smp_lock.h>
diff --git a/arch/ppc/kernel/ppc_ksyms.c b/arch/ppc/kernel/ppc_ksyms.c
index bb6a5c6a64be..3a6e4bcb3c53 100644
--- a/arch/ppc/kernel/ppc_ksyms.c
+++ b/arch/ppc/kernel/ppc_ksyms.c
@@ -34,7 +34,6 @@
#include <asm/system.h>
#include <asm/pci-bridge.h>
#include <asm/irq.h>
-#include <asm/pmac_feature.h>
#include <asm/dma.h>
#include <asm/machdep.h>
#include <asm/hw_irq.h>
@@ -58,7 +57,6 @@ extern void machine_check_exception(struct pt_regs *regs);
extern void alignment_exception(struct pt_regs *regs);
extern void program_check_exception(struct pt_regs *regs);
extern void single_step_exception(struct pt_regs *regs);
-extern int pmac_newworld;
extern int sys_sigreturn(struct pt_regs *regs);
long long __ashrdi3(long long, int);
@@ -82,10 +80,6 @@ EXPORT_SYMBOL(ppc_n_lost_interrupts);
EXPORT_SYMBOL(ISA_DMA_THRESHOLD);
EXPORT_SYMBOL(DMA_MODE_READ);
EXPORT_SYMBOL(DMA_MODE_WRITE);
-#if defined(CONFIG_PPC_PREP)
-EXPORT_SYMBOL(_prep_type);
-EXPORT_SYMBOL(ucSystemType);
-#endif
#if !defined(__INLINE_BITOPS)
EXPORT_SYMBOL(set_bit);
@@ -217,10 +211,6 @@ EXPORT_SYMBOL(adb_try_handler_change);
EXPORT_SYMBOL(cuda_request);
EXPORT_SYMBOL(cuda_poll);
#endif /* CONFIG_ADB_CUDA */
-#ifdef CONFIG_PPC_PMAC
-EXPORT_SYMBOL(sys_ctrler);
-EXPORT_SYMBOL(pmac_newworld);
-#endif
#ifdef CONFIG_PPC_OF
EXPORT_SYMBOL(find_devices);
EXPORT_SYMBOL(find_type_devices);
@@ -245,9 +235,6 @@ EXPORT_SYMBOL(of_node_put);
#if defined(CONFIG_BOOTX_TEXT)
EXPORT_SYMBOL(btext_update_display);
#endif
-#if defined(CONFIG_SCSI) && defined(CONFIG_PPC_PMAC)
-EXPORT_SYMBOL(note_scsi_host);
-#endif
#ifdef CONFIG_VT
EXPORT_SYMBOL(kd_mksound);
#endif
@@ -274,7 +261,6 @@ EXPORT_SYMBOL(__delay);
EXPORT_SYMBOL(timer_interrupt);
EXPORT_SYMBOL(irq_desc);
EXPORT_SYMBOL(tb_ticks_per_jiffy);
-EXPORT_SYMBOL(get_wchan);
EXPORT_SYMBOL(console_drivers);
#ifdef CONFIG_XMON
EXPORT_SYMBOL(xmon);
@@ -311,7 +297,6 @@ EXPORT_SYMBOL(__res);
EXPORT_SYMBOL(next_mmu_context);
EXPORT_SYMBOL(set_context);
-EXPORT_SYMBOL_GPL(__handle_mm_fault); /* For MOL */
EXPORT_SYMBOL(disarm_decr);
#ifdef CONFIG_PPC_STD_MMU
extern long mol_trampoline;
diff --git a/arch/ppc/kernel/process.c b/arch/ppc/kernel/process.c
deleted file mode 100644
index 25cbdc8d2941..000000000000
--- a/arch/ppc/kernel/process.c
+++ /dev/null
@@ -1,851 +0,0 @@
-/*
- * arch/ppc/kernel/process.c
- *
- * Derived from "arch/i386/kernel/process.c"
- * Copyright (C) 1995 Linus Torvalds
- *
- * Updated and modified by Cort Dougan (cort@cs.nmt.edu) and
- * Paul Mackerras (paulus@cs.anu.edu.au)
- *
- * PowerPC version
- * Copyright (C) 1995-1996 Gary Thomas (gdt@linuxppc.org)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- *
- */
-
-#include <linux/config.h>
-#include <linux/errno.h>
-#include <linux/sched.h>
-#include <linux/kernel.h>
-#include <linux/mm.h>
-#include <linux/smp.h>
-#include <linux/smp_lock.h>
-#include <linux/stddef.h>
-#include <linux/unistd.h>
-#include <linux/ptrace.h>
-#include <linux/slab.h>
-#include <linux/user.h>
-#include <linux/elf.h>
-#include <linux/init.h>
-#include <linux/prctl.h>
-#include <linux/init_task.h>
-#include <linux/module.h>
-#include <linux/kallsyms.h>
-#include <linux/mqueue.h>
-#include <linux/hardirq.h>
-
-#include <asm/pgtable.h>
-#include <asm/uaccess.h>
-#include <asm/system.h>
-#include <asm/io.h>
-#include <asm/processor.h>
-#include <asm/mmu.h>
-#include <asm/prom.h>
-
-extern unsigned long _get_SP(void);
-
-struct task_struct *last_task_used_math = NULL;
-struct task_struct *last_task_used_altivec = NULL;
-struct task_struct *last_task_used_spe = NULL;
-
-static struct fs_struct init_fs = INIT_FS;
-static struct files_struct init_files = INIT_FILES;
-static struct signal_struct init_signals = INIT_SIGNALS(init_signals);
-static struct sighand_struct init_sighand = INIT_SIGHAND(init_sighand);
-struct mm_struct init_mm = INIT_MM(init_mm);
-EXPORT_SYMBOL(init_mm);
-
-/* this is 8kB-aligned so we can get to the thread_info struct
- at the base of it from the stack pointer with 1 integer instruction. */
-union thread_union init_thread_union
- __attribute__((__section__(".data.init_task"))) =
-{ INIT_THREAD_INFO(init_task) };
-
-/* initial task structure */
-struct task_struct init_task = INIT_TASK(init_task);
-EXPORT_SYMBOL(init_task);
-
-/* only used to get secondary processor up */
-struct task_struct *current_set[NR_CPUS] = {&init_task, };
-
-#undef SHOW_TASK_SWITCHES
-#undef CHECK_STACK
-
-#if defined(CHECK_STACK)
-unsigned long
-kernel_stack_top(struct task_struct *tsk)
-{
- return ((unsigned long)tsk) + sizeof(union task_union);
-}
-
-unsigned long
-task_top(struct task_struct *tsk)
-{
- return ((unsigned long)tsk) + sizeof(struct thread_info);
-}
-
-/* check to make sure the kernel stack is healthy */
-int check_stack(struct task_struct *tsk)
-{
- unsigned long stack_top = kernel_stack_top(tsk);
- unsigned long tsk_top = task_top(tsk);
- int ret = 0;
-
-#if 0
- /* check thread magic */
- if ( tsk->thread.magic != THREAD_MAGIC )
- {
- ret |= 1;
- printk("thread.magic bad: %08x\n", tsk->thread.magic);
- }
-#endif
-
- if ( !tsk )
- printk("check_stack(): tsk bad tsk %p\n",tsk);
-
- /* check if stored ksp is bad */
- if ( (tsk->thread.ksp > stack_top) || (tsk->thread.ksp < tsk_top) )
- {
- printk("stack out of bounds: %s/%d\n"
- " tsk_top %08lx ksp %08lx stack_top %08lx\n",
- tsk->comm,tsk->pid,
- tsk_top, tsk->thread.ksp, stack_top);
- ret |= 2;
- }
-
- /* check if stack ptr RIGHT NOW is bad */
- if ( (tsk == current) && ((_get_SP() > stack_top ) || (_get_SP() < tsk_top)) )
- {
- printk("current stack ptr out of bounds: %s/%d\n"
- " tsk_top %08lx sp %08lx stack_top %08lx\n",
- current->comm,current->pid,
- tsk_top, _get_SP(), stack_top);
- ret |= 4;
- }
-
-#if 0
- /* check amount of free stack */
- for ( i = (unsigned long *)task_top(tsk) ; i < kernel_stack_top(tsk) ; i++ )
- {
- if ( !i )
- printk("check_stack(): i = %p\n", i);
- if ( *i != 0 )
- {
- /* only notify if it's less than 900 bytes */
- if ( (i - (unsigned long *)task_top(tsk)) < 900 )
- printk("%d bytes free on stack\n",
- i - task_top(tsk));
- break;
- }
- }
-#endif
-
- if (ret)
- {
- panic("bad kernel stack");
- }
- return(ret);
-}
-#endif /* defined(CHECK_STACK) */
-
-/*
- * Make sure the floating-point register state in the
- * the thread_struct is up to date for task tsk.
- */
-void flush_fp_to_thread(struct task_struct *tsk)
-{
- if (tsk->thread.regs) {
- /*
- * We need to disable preemption here because if we didn't,
- * another process could get scheduled after the regs->msr
- * test but before we have finished saving the FP registers
- * to the thread_struct. That process could take over the
- * FPU, and then when we get scheduled again we would store
- * bogus values for the remaining FP registers.
- */
- preempt_disable();
- if (tsk->thread.regs->msr & MSR_FP) {
-#ifdef CONFIG_SMP
- /*
- * This should only ever be called for current or
- * for a stopped child process. Since we save away
- * the FP register state on context switch on SMP,
- * there is something wrong if a stopped child appears
- * to still have its FP state in the CPU registers.
- */
- BUG_ON(tsk != current);
-#endif
- giveup_fpu(current);
- }
- preempt_enable();
- }
-}
-
-void enable_kernel_fp(void)
-{
- WARN_ON(preemptible());
-
-#ifdef CONFIG_SMP
- if (current->thread.regs && (current->thread.regs->msr & MSR_FP))
- giveup_fpu(current);
- else
- giveup_fpu(NULL); /* just enables FP for kernel */
-#else
- giveup_fpu(last_task_used_math);
-#endif /* CONFIG_SMP */
-}
-EXPORT_SYMBOL(enable_kernel_fp);
-
-int dump_task_fpu(struct task_struct *tsk, elf_fpregset_t *fpregs)
-{
- preempt_disable();
- if (tsk->thread.regs && (tsk->thread.regs->msr & MSR_FP))
- giveup_fpu(tsk);
- preempt_enable();
- memcpy(fpregs, &tsk->thread.fpr[0], sizeof(*fpregs));
- return 1;
-}
-
-#ifdef CONFIG_ALTIVEC
-void enable_kernel_altivec(void)
-{
- WARN_ON(preemptible());
-
-#ifdef CONFIG_SMP
- if (current->thread.regs && (current->thread.regs->msr & MSR_VEC))
- giveup_altivec(current);
- else
- giveup_altivec(NULL); /* just enable AltiVec for kernel - force */
-#else
- giveup_altivec(last_task_used_altivec);
-#endif /* __SMP __ */
-}
-EXPORT_SYMBOL(enable_kernel_altivec);
-
-/*
- * Make sure the VMX/Altivec register state in the
- * the thread_struct is up to date for task tsk.
- */
-void flush_altivec_to_thread(struct task_struct *tsk)
-{
- if (tsk->thread.regs) {
- preempt_disable();
- if (tsk->thread.regs->msr & MSR_VEC) {
-#ifdef CONFIG_SMP
- BUG_ON(tsk != current);
-#endif
- giveup_altivec(current);
- }
- preempt_enable();
- }
-}
-
-int dump_altivec(struct pt_regs *regs, elf_vrregset_t *vrregs)
-{
- if (regs->msr & MSR_VEC)
- giveup_altivec(current);
- memcpy(vrregs, &current->thread.vr[0], sizeof(*vrregs));
- return 1;
-}
-#endif /* CONFIG_ALTIVEC */
-
-#ifdef CONFIG_SPE
-void
-enable_kernel_spe(void)
-{
- WARN_ON(preemptible());
-
-#ifdef CONFIG_SMP
- if (current->thread.regs && (current->thread.regs->msr & MSR_SPE))
- giveup_spe(current);
- else
- giveup_spe(NULL); /* just enable SPE for kernel - force */
-#else
- giveup_spe(last_task_used_spe);
-#endif /* __SMP __ */
-}
-EXPORT_SYMBOL(enable_kernel_spe);
-
-void flush_spe_to_thread(struct task_struct *tsk)
-{
- if (tsk->thread.regs) {
- preempt_disable();
- if (tsk->thread.regs->msr & MSR_SPE) {
-#ifdef CONFIG_SMP
- BUG_ON(tsk != current);
-#endif
- giveup_spe(current);
- }
- preempt_enable();
- }
-}
-
-int dump_spe(struct pt_regs *regs, elf_vrregset_t *evrregs)
-{
- if (regs->msr & MSR_SPE)
- giveup_spe(current);
- /* We copy u32 evr[32] + u64 acc + u32 spefscr -> 35 */
- memcpy(evrregs, &current->thread.evr[0], sizeof(u32) * 35);
- return 1;
-}
-#endif /* CONFIG_SPE */
-
-struct task_struct *__switch_to(struct task_struct *prev,
- struct task_struct *new)
-{
- struct thread_struct *new_thread, *old_thread;
- unsigned long s;
- struct task_struct *last;
-
- local_irq_save(s);
-#ifdef CHECK_STACK
- check_stack(prev);
- check_stack(new);
-#endif
-
-#ifdef CONFIG_SMP
- /* avoid complexity of lazy save/restore of fpu
- * by just saving it every time we switch out if
- * this task used the fpu during the last quantum.
- *
- * If it tries to use the fpu again, it'll trap and
- * reload its fp regs. So we don't have to do a restore
- * every switch, just a save.
- * -- Cort
- */
- if (prev->thread.regs && (prev->thread.regs->msr & MSR_FP))
- giveup_fpu(prev);
-#ifdef CONFIG_ALTIVEC
- /*
- * If the previous thread used altivec in the last quantum
- * (thus changing altivec regs) then save them.
- * We used to check the VRSAVE register but not all apps
- * set it, so we don't rely on it now (and in fact we need
- * to save & restore VSCR even if VRSAVE == 0). -- paulus
- *
- * On SMP we always save/restore altivec regs just to avoid the
- * complexity of changing processors.
- * -- Cort
- */
- if ((prev->thread.regs && (prev->thread.regs->msr & MSR_VEC)))
- giveup_altivec(prev);
-#endif /* CONFIG_ALTIVEC */
-#ifdef CONFIG_SPE
- /*
- * If the previous thread used spe in the last quantum
- * (thus changing spe regs) then save them.
- *
- * On SMP we always save/restore spe regs just to avoid the
- * complexity of changing processors.
- */
- if ((prev->thread.regs && (prev->thread.regs->msr & MSR_SPE)))
- giveup_spe(prev);
-#endif /* CONFIG_SPE */
-#endif /* CONFIG_SMP */
-
-#ifdef CONFIG_ALTIVEC
- /* Avoid the trap. On smp this this never happens since
- * we don't set last_task_used_altivec -- Cort
- */
- if (new->thread.regs && last_task_used_altivec == new)
- new->thread.regs->msr |= MSR_VEC;
-#endif
-#ifdef CONFIG_SPE
- /* Avoid the trap. On smp this this never happens since
- * we don't set last_task_used_spe
- */
- if (new->thread.regs && last_task_used_spe == new)
- new->thread.regs->msr |= MSR_SPE;
-#endif /* CONFIG_SPE */
- new_thread = &new->thread;
- old_thread = &current->thread;
- last = _switch(old_thread, new_thread);
- local_irq_restore(s);
- return last;
-}
-
-void show_regs(struct pt_regs * regs)
-{
- int i, trap;
-
- printk("NIP: %08lX LR: %08lX SP: %08lX REGS: %p TRAP: %04lx %s\n",
- regs->nip, regs->link, regs->gpr[1], regs, regs->trap,
- print_tainted());
- printk("MSR: %08lx EE: %01x PR: %01x FP: %01x ME: %01x IR/DR: %01x%01x\n",
- regs->msr, regs->msr&MSR_EE ? 1 : 0, regs->msr&MSR_PR ? 1 : 0,
- regs->msr & MSR_FP ? 1 : 0,regs->msr&MSR_ME ? 1 : 0,
- regs->msr&MSR_IR ? 1 : 0,
- regs->msr&MSR_DR ? 1 : 0);
- trap = TRAP(regs);
- if (trap == 0x300 || trap == 0x600)
- printk("DAR: %08lX, DSISR: %08lX\n", regs->dar, regs->dsisr);
- printk("TASK = %p[%d] '%s' THREAD: %p\n",
- current, current->pid, current->comm, current->thread_info);
- printk("Last syscall: %ld ", current->thread.last_syscall);
-
-#ifdef CONFIG_SMP
- printk(" CPU: %d", smp_processor_id());
-#endif /* CONFIG_SMP */
-
- for (i = 0; i < 32; i++) {
- long r;
- if ((i % 8) == 0)
- printk("\n" KERN_INFO "GPR%02d: ", i);
- if (__get_user(r, &regs->gpr[i]))
- break;
- printk("%08lX ", r);
- if (i == 12 && !FULL_REGS(regs))
- break;
- }
- printk("\n");
-#ifdef CONFIG_KALLSYMS
- /*
- * Lookup NIP late so we have the best change of getting the
- * above info out without failing
- */
- printk("NIP [%08lx] ", regs->nip);
- print_symbol("%s\n", regs->nip);
- printk("LR [%08lx] ", regs->link);
- print_symbol("%s\n", regs->link);
-#endif
- show_stack(current, (unsigned long *) regs->gpr[1]);
-}
-
-void exit_thread(void)
-{
- preempt_disable();
- if (last_task_used_math == current)
- last_task_used_math = NULL;
- if (last_task_used_altivec == current)
- last_task_used_altivec = NULL;
-#ifdef CONFIG_SPE
- if (last_task_used_spe == current)
- last_task_used_spe = NULL;
-#endif
- preempt_enable();
-}
-
-void flush_thread(void)
-{
- preempt_disable();
- if (last_task_used_math == current)
- last_task_used_math = NULL;
- if (last_task_used_altivec == current)
- last_task_used_altivec = NULL;
-#ifdef CONFIG_SPE
- if (last_task_used_spe == current)
- last_task_used_spe = NULL;
-#endif
- preempt_enable();
-}
-
-void
-release_thread(struct task_struct *t)
-{
-}
-
-/*
- * This gets called before we allocate a new thread and copy
- * the current task into it.
- */
-void prepare_to_copy(struct task_struct *tsk)
-{
- struct pt_regs *regs = tsk->thread.regs;
-
- if (regs == NULL)
- return;
- preempt_disable();
- if (regs->msr & MSR_FP)
- giveup_fpu(current);
-#ifdef CONFIG_ALTIVEC
- if (regs->msr & MSR_VEC)
- giveup_altivec(current);
-#endif /* CONFIG_ALTIVEC */
-#ifdef CONFIG_SPE
- if (regs->msr & MSR_SPE)
- giveup_spe(current);
-#endif /* CONFIG_SPE */
- preempt_enable();
-}
-
-/*
- * Copy a thread..
- */
-int
-copy_thread(int nr, unsigned long clone_flags, unsigned long usp,
- unsigned long unused,
- struct task_struct *p, struct pt_regs *regs)
-{
- struct pt_regs *childregs, *kregs;
- extern void ret_from_fork(void);
- unsigned long sp = (unsigned long)p->thread_info + THREAD_SIZE;
- unsigned long childframe;
-
- CHECK_FULL_REGS(regs);
- /* Copy registers */
- sp -= sizeof(struct pt_regs);
- childregs = (struct pt_regs *) sp;
- *childregs = *regs;
- if ((childregs->msr & MSR_PR) == 0) {
- /* for kernel thread, set `current' and stackptr in new task */
- childregs->gpr[1] = sp + sizeof(struct pt_regs);
- childregs->gpr[2] = (unsigned long) p;
- p->thread.regs = NULL; /* no user register state */
- } else {
- childregs->gpr[1] = usp;
- p->thread.regs = childregs;
- if (clone_flags & CLONE_SETTLS)
- childregs->gpr[2] = childregs->gpr[6];
- }
- childregs->gpr[3] = 0; /* Result from fork() */
- sp -= STACK_FRAME_OVERHEAD;
- childframe = sp;
-
- /*
- * The way this works is that at some point in the future
- * some task will call _switch to switch to the new task.
- * That will pop off the stack frame created below and start
- * the new task running at ret_from_fork. The new task will
- * do some house keeping and then return from the fork or clone
- * system call, using the stack frame created above.
- */
- sp -= sizeof(struct pt_regs);
- kregs = (struct pt_regs *) sp;
- sp -= STACK_FRAME_OVERHEAD;
- p->thread.ksp = sp;
- kregs->nip = (unsigned long)ret_from_fork;
-
- p->thread.last_syscall = -1;
-
- return 0;
-}
-
-/*
- * Set up a thread for executing a new program
- */
-void start_thread(struct pt_regs *regs, unsigned long nip, unsigned long sp)
-{
- set_fs(USER_DS);
- memset(regs->gpr, 0, sizeof(regs->gpr));
- regs->ctr = 0;
- regs->link = 0;
- regs->xer = 0;
- regs->ccr = 0;
- regs->mq = 0;
- regs->nip = nip;
- regs->gpr[1] = sp;
- regs->msr = MSR_USER;
- preempt_disable();
- if (last_task_used_math == current)
- last_task_used_math = NULL;
- if (last_task_used_altivec == current)
- last_task_used_altivec = NULL;
-#ifdef CONFIG_SPE
- if (last_task_used_spe == current)
- last_task_used_spe = NULL;
-#endif
- preempt_enable();
- memset(current->thread.fpr, 0, sizeof(current->thread.fpr));
- current->thread.fpscr.val = 0;
-#ifdef CONFIG_ALTIVEC
- memset(current->thread.vr, 0, sizeof(current->thread.vr));
- memset(&current->thread.vscr, 0, sizeof(current->thread.vscr));
- current->thread.vrsave = 0;
- current->thread.used_vr = 0;
-#endif /* CONFIG_ALTIVEC */
-#ifdef CONFIG_SPE
- memset(current->thread.evr, 0, sizeof(current->thread.evr));
- current->thread.acc = 0;
- current->thread.spefscr = 0;
- current->thread.used_spe = 0;
-#endif /* CONFIG_SPE */
-}
-
-#define PR_FP_ALL_EXCEPT (PR_FP_EXC_DIV | PR_FP_EXC_OVF | PR_FP_EXC_UND \
- | PR_FP_EXC_RES | PR_FP_EXC_INV)
-
-int set_fpexc_mode(struct task_struct *tsk, unsigned int val)
-{
- struct pt_regs *regs = tsk->thread.regs;
-
- /* This is a bit hairy. If we are an SPE enabled processor
- * (have embedded fp) we store the IEEE exception enable flags in
- * fpexc_mode. fpexc_mode is also used for setting FP exception
- * mode (asyn, precise, disabled) for 'Classic' FP. */
- if (val & PR_FP_EXC_SW_ENABLE) {
-#ifdef CONFIG_SPE
- tsk->thread.fpexc_mode = val &
- (PR_FP_EXC_SW_ENABLE | PR_FP_ALL_EXCEPT);
-#else
- return -EINVAL;
-#endif
- } else {
- /* on a CONFIG_SPE this does not hurt us. The bits that
- * __pack_fe01 use do not overlap with bits used for
- * PR_FP_EXC_SW_ENABLE. Additionally, the MSR[FE0,FE1] bits
- * on CONFIG_SPE implementations are reserved so writing to
- * them does not change anything */
- if (val > PR_FP_EXC_PRECISE)
- return -EINVAL;
- tsk->thread.fpexc_mode = __pack_fe01(val);
- if (regs != NULL && (regs->msr & MSR_FP) != 0)
- regs->msr = (regs->msr & ~(MSR_FE0|MSR_FE1))
- | tsk->thread.fpexc_mode;
- }
- return 0;
-}
-
-int get_fpexc_mode(struct task_struct *tsk, unsigned long adr)
-{
- unsigned int val;
-
- if (tsk->thread.fpexc_mode & PR_FP_EXC_SW_ENABLE)
-#ifdef CONFIG_SPE
- val = tsk->thread.fpexc_mode;
-#else
- return -EINVAL;
-#endif
- else
- val = __unpack_fe01(tsk->thread.fpexc_mode);
- return put_user(val, (unsigned int __user *) adr);
-}
-
-int sys_clone(unsigned long clone_flags, unsigned long usp,
- int __user *parent_tidp, void __user *child_threadptr,
- int __user *child_tidp, int p6,
- struct pt_regs *regs)
-{
- CHECK_FULL_REGS(regs);
- if (usp == 0)
- usp = regs->gpr[1]; /* stack pointer for child */
- return do_fork(clone_flags, usp, regs, 0, parent_tidp, child_tidp);
-}
-
-int sys_fork(unsigned long p1, unsigned long p2, unsigned long p3,
- unsigned long p4, unsigned long p5, unsigned long p6,
- struct pt_regs *regs)
-{
- CHECK_FULL_REGS(regs);
- return do_fork(SIGCHLD, regs->gpr[1], regs, 0, NULL, NULL);
-}
-
-int sys_vfork(unsigned long p1, unsigned long p2, unsigned long p3,
- unsigned long p4, unsigned long p5, unsigned long p6,
- struct pt_regs *regs)
-{
- CHECK_FULL_REGS(regs);
- return do_fork(CLONE_VFORK | CLONE_VM | SIGCHLD, regs->gpr[1],
- regs, 0, NULL, NULL);
-}
-
-int sys_execve(unsigned long a0, unsigned long a1, unsigned long a2,
- unsigned long a3, unsigned long a4, unsigned long a5,
- struct pt_regs *regs)
-{
- int error;
- char * filename;
-
- filename = getname((char __user *) a0);
- error = PTR_ERR(filename);
- if (IS_ERR(filename))
- goto out;
- preempt_disable();
- if (regs->msr & MSR_FP)
- giveup_fpu(current);
-#ifdef CONFIG_ALTIVEC
- if (regs->msr & MSR_VEC)
- giveup_altivec(current);
-#endif /* CONFIG_ALTIVEC */
-#ifdef CONFIG_SPE
- if (regs->msr & MSR_SPE)
- giveup_spe(current);
-#endif /* CONFIG_SPE */
- preempt_enable();
- error = do_execve(filename, (char __user *__user *) a1,
- (char __user *__user *) a2, regs);
- if (error == 0) {
- task_lock(current);
- current->ptrace &= ~PT_DTRACE;
- task_unlock(current);
- }
- putname(filename);
-out:
- return error;
-}
-
-void dump_stack(void)
-{
- show_stack(current, NULL);
-}
-
-EXPORT_SYMBOL(dump_stack);
-
-void show_stack(struct task_struct *tsk, unsigned long *stack)
-{
- unsigned long sp, stack_top, prev_sp, ret;
- int count = 0;
- unsigned long next_exc = 0;
- struct pt_regs *regs;
- extern char ret_from_except, ret_from_except_full, ret_from_syscall;
-
- sp = (unsigned long) stack;
- if (tsk == NULL)
- tsk = current;
- if (sp == 0) {
- if (tsk == current)
- asm("mr %0,1" : "=r" (sp));
- else
- sp = tsk->thread.ksp;
- }
-
- prev_sp = (unsigned long) (tsk->thread_info + 1);
- stack_top = (unsigned long) tsk->thread_info + THREAD_SIZE;
- while (count < 16 && sp > prev_sp && sp < stack_top && (sp & 3) == 0) {
- if (count == 0) {
- printk("Call trace:");
-#ifdef CONFIG_KALLSYMS
- printk("\n");
-#endif
- } else {
- if (next_exc) {
- ret = next_exc;
- next_exc = 0;
- } else
- ret = *(unsigned long *)(sp + 4);
- printk(" [%08lx] ", ret);
-#ifdef CONFIG_KALLSYMS
- print_symbol("%s", ret);
- printk("\n");
-#endif
- if (ret == (unsigned long) &ret_from_except
- || ret == (unsigned long) &ret_from_except_full
- || ret == (unsigned long) &ret_from_syscall) {
- /* sp + 16 points to an exception frame */
- regs = (struct pt_regs *) (sp + 16);
- if (sp + 16 + sizeof(*regs) <= stack_top)
- next_exc = regs->nip;
- }
- }
- ++count;
- sp = *(unsigned long *)sp;
- }
-#ifndef CONFIG_KALLSYMS
- if (count > 0)
- printk("\n");
-#endif
-}
-
-#if 0
-/*
- * Low level print for debugging - Cort
- */
-int __init ll_printk(const char *fmt, ...)
-{
- va_list args;
- char buf[256];
- int i;
-
- va_start(args, fmt);
- i=vsprintf(buf,fmt,args);
- ll_puts(buf);
- va_end(args);
- return i;
-}
-
-int lines = 24, cols = 80;
-int orig_x = 0, orig_y = 0;
-
-void puthex(unsigned long val)
-{
- unsigned char buf[10];
- int i;
- for (i = 7; i >= 0; i--)
- {
- buf[i] = "0123456789ABCDEF"[val & 0x0F];
- val >>= 4;
- }
- buf[8] = '\0';
- prom_print(buf);
-}
-
-void __init ll_puts(const char *s)
-{
- int x,y;
- char *vidmem = (char *)/*(_ISA_MEM_BASE + 0xB8000) */0xD00B8000;
- char c;
- extern int mem_init_done;
-
- if ( mem_init_done ) /* assume this means we can printk */
- {
- printk(s);
- return;
- }
-
-#if 0
- if ( have_of )
- {
- prom_print(s);
- return;
- }
-#endif
-
- /*
- * can't ll_puts on chrp without openfirmware yet.
- * vidmem just needs to be setup for it.
- * -- Cort
- */
- if ( _machine != _MACH_prep )
- return;
- x = orig_x;
- y = orig_y;
-
- while ( ( c = *s++ ) != '\0' ) {
- if ( c == '\n' ) {
- x = 0;
- if ( ++y >= lines ) {
- /*scroll();*/
- /*y--;*/
- y = 0;
- }
- } else {
- vidmem [ ( x + cols * y ) * 2 ] = c;
- if ( ++x >= cols ) {
- x = 0;
- if ( ++y >= lines ) {
- /*scroll();*/
- /*y--;*/
- y = 0;
- }
- }
- }
- }
-
- orig_x = x;
- orig_y = y;
-}
-#endif
-
-unsigned long get_wchan(struct task_struct *p)
-{
- unsigned long ip, sp;
- unsigned long stack_page = (unsigned long) p->thread_info;
- int count = 0;
- if (!p || p == current || p->state == TASK_RUNNING)
- return 0;
- sp = p->thread.ksp;
- do {
- sp = *(unsigned long *)sp;
- if (sp < stack_page || sp >= stack_page + 8188)
- return 0;
- if (count > 0) {
- ip = *(unsigned long *)(sp + 4);
- if (!in_sched_functions(ip))
- return ip;
- }
- } while (count++ < 16);
- return 0;
-}
diff --git a/arch/ppc/kernel/setup.c b/arch/ppc/kernel/setup.c
index 0eb0b7085e6a..c08ab432e958 100644
--- a/arch/ppc/kernel/setup.c
+++ b/arch/ppc/kernel/setup.c
@@ -1,5 +1,5 @@
/*
- * Common prep/pmac/chrp boot and setup code.
+ * Common prep/chrp boot and setup code.
*/
#include <linux/config.h>
@@ -35,7 +35,6 @@
#include <asm/machdep.h>
#include <asm/uaccess.h>
#include <asm/system.h>
-#include <asm/pmac_feature.h>
#include <asm/sections.h>
#include <asm/nvram.h>
#include <asm/xmon.h>
@@ -55,7 +54,6 @@
extern void platform_init(unsigned long r3, unsigned long r4,
unsigned long r5, unsigned long r6, unsigned long r7);
-extern void bootx_init(unsigned long r4, unsigned long phys);
extern void identify_cpu(unsigned long offset, unsigned long cpu);
extern void do_cpu_ftr_fixups(unsigned long offset);
extern void reloc_got2(unsigned long offset);
@@ -80,8 +78,6 @@ EXPORT_SYMBOL(_machine);
extern void prep_init(unsigned long r3, unsigned long r4,
unsigned long r5, unsigned long r6, unsigned long r7);
-extern void pmac_init(unsigned long r3, unsigned long r4,
- unsigned long r5, unsigned long r6, unsigned long r7);
extern void chrp_init(unsigned long r3, unsigned long r4,
unsigned long r5, unsigned long r6, unsigned long r7);
@@ -324,20 +320,15 @@ early_init(int r3, int r4, int r5)
identify_cpu(offset, 0);
do_cpu_ftr_fixups(offset);
-#if defined(CONFIG_PPC_MULTIPLATFORM)
+#if defined(CONFIG_PPC_OF)
reloc_got2(offset);
- /* If we came here from BootX, clear the screen,
- * set up some pointers and return. */
- if ((r3 == 0x426f6f58) && (r5 == 0))
- bootx_init(r4, phys);
-
/*
* don't do anything on prep
* for now, don't use bootinfo because it breaks yaboot 0.5
* and assume that if we didn't find a magic number, we have OF
*/
- else if (*(unsigned long *)(0) != 0xdeadc0de)
+ if (*(unsigned long *)(0) != 0xdeadc0de)
phys = prom_init(r3, r4, (prom_entry)r5);
reloc_got2(-offset);
@@ -424,6 +415,7 @@ platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
}
#endif
+#ifdef CONFIG_PPC_OF
have_of = 1;
/* prom_init has already been called from __start */
@@ -495,19 +487,17 @@ platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
#endif /* CONFIG_ADB */
switch (_machine) {
-#ifdef CONFIG_PPC_PMAC
- case _MACH_Pmac:
- pmac_init(r3, r4, r5, r6, r7);
- break;
-#endif
#ifdef CONFIG_PPC_CHRP
case _MACH_chrp:
chrp_init(r3, r4, r5, r6, r7);
break;
#endif
}
+#endif /* CONFIG_PPC_OF */
}
+#endif /* CONFIG_PPC_MULTIPLATFORM */
+#ifdef CONFIG_PPC_OF
#ifdef CONFIG_SERIAL_CORE_CONSOLE
extern char *of_stdout_device;
@@ -564,7 +554,7 @@ static int __init set_preferred_console(void)
}
console_initcall(set_preferred_console);
#endif /* CONFIG_SERIAL_CORE_CONSOLE */
-#endif /* CONFIG_PPC_MULTIPLATFORM */
+#endif /* CONFIG_PPC_OF */
struct bi_record *find_bootinfo(void)
{
@@ -744,13 +734,8 @@ void __init setup_arch(char **cmdline_p)
/* so udelay does something sensible, assume <= 1000 bogomips */
loops_per_jiffy = 500000000 / HZ;
-#ifdef CONFIG_PPC_MULTIPLATFORM
- /* This could be called "early setup arch", it must be done
- * now because xmon need it
- */
- if (_machine == _MACH_Pmac)
- pmac_feature_init(); /* New cool way */
-#endif
+ if (ppc_md.init_early)
+ ppc_md.init_early();
#ifdef CONFIG_XMON
xmon_init(1);
diff --git a/arch/ppc/kernel/smp.c b/arch/ppc/kernel/smp.c
index becbfa397556..e55cdda6149a 100644
--- a/arch/ppc/kernel/smp.c
+++ b/arch/ppc/kernel/smp.c
@@ -318,7 +318,7 @@ void __init smp_prepare_cpus(unsigned int max_cpus)
p = fork_idle(cpu);
if (IS_ERR(p))
panic("failed fork for CPU %u: %li", cpu, PTR_ERR(p));
- p->thread_info->cpu = cpu;
+ task_thread_info(p)->cpu = cpu;
idle_tasks[cpu] = p;
}
}
@@ -369,7 +369,7 @@ int __cpu_up(unsigned int cpu)
char buf[32];
int c;
- secondary_ti = idle_tasks[cpu]->thread_info;
+ secondary_ti = task_thread_info(idle_tasks[cpu]);
mb();
/*
diff --git a/arch/ppc/kernel/traps.c b/arch/ppc/kernel/traps.c
index 9dbc4d28fa28..6d0a1838d94c 100644
--- a/arch/ppc/kernel/traps.c
+++ b/arch/ppc/kernel/traps.c
@@ -38,9 +38,6 @@
#include <asm/io.h>
#include <asm/reg.h>
#include <asm/xmon.h>
-#ifdef CONFIG_PMAC_BACKLIGHT
-#include <asm/backlight.h>
-#endif
#include <asm/pmc.h>
#ifdef CONFIG_XMON
@@ -85,12 +82,6 @@ int die(const char * str, struct pt_regs * fp, long err)
int nl = 0;
console_verbose();
spin_lock_irq(&die_lock);
-#ifdef CONFIG_PMAC_BACKLIGHT
- if (_machine == _MACH_Pmac) {
- set_backlight_enable(1);
- set_backlight_level(BACKLIGHT_MAX);
- }
-#endif
printk("Oops: %s, sig: %ld [#%d]\n", str, err, ++die_counter);
#ifdef CONFIG_PREEMPT
printk("PREEMPT ");
@@ -159,7 +150,7 @@ void _exception(int signr, struct pt_regs *regs, int code, unsigned long addr)
*/
static inline int check_io_access(struct pt_regs *regs)
{
-#if defined CONFIG_PPC_PMAC || defined CONFIG_8xx
+#if defined CONFIG_8xx
unsigned long msr = regs->msr;
const struct exception_table_entry *entry;
unsigned int *nip = (unsigned int *)regs->nip;
@@ -196,7 +187,7 @@ static inline int check_io_access(struct pt_regs *regs)
return 1;
}
}
-#endif /* CONFIG_PPC_PMAC */
+#endif /* CONFIG_8xx */
return 0;
}
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